Journal-bearing.



PATENTED UNE 9 G. A: WOODMAN. JOURNAL BEARING. I APPLIUATION FILED MAY26 1 902.

2 BHEBTS SHEET 1 I0 M DEL.

iwlau No. 730,328. PATENTED JUNE 9, 1903.- G. A- .WOODMAN. Y

JOURNAL BEARING. APPLICATION rum) in 26, 1902.

10 110mm. 2 SHEETS-SHEET z.

8 2M07 leg.

UNITED STATES iatented June 9, 1903 PATENT OFFICE.

GEORGE A. WOODMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO AUGUST J WEIL, OFNEW YORK, N. Y.

JOURNAL-BEARING.

SPECIFICATION forming part of Letters :Fate'nt No. 730,328, dated June9, 1903.

Application filed May 26,1902.

T0 at whom it may concern.-

Be it known that I, GEORGE A. WOODMAN,

a citizen of the United'States, residing at Chicago, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements in J carnal-Bearings, of which the following is aspecification.

This invention relates to improvements in journal-bearings; and itsprimary object is to reduce the cost of manufacturing journalbearingsWithout impairing the strength or shortening the life of the bearing;and a further object is to providea bearing with a back made ofmalleable iron or other suitable metal and a body of brass or othersuitable metal and to lock the parts together, so that they will bethoroughly and permanently united.

In order that my invention may be fully understood, I will explain thesame as embodied in a car-axle bearing of both the Universal and theMaster Oar-Builders types; but I do not in any way limit myself to theembodiment of the invention in these or any other bearings, because itwill be apparent that it may be used in connection-with journal-bearingsof many other varieties.

In the drawings, Figure 1 is a top plan. 'view of a Universal car-axlebearing embodying the invention. Figs. 2 and 3 are transverse sectionalviews on the lines 2 2 and 3 3, respectively, of Fig. 1. Fig. 4 is a topplan View of a Master Car-Builders bearing embodying my invention. Figs.5 and 6 are transverse sectional views on the lines 5 5 and 6 6,respectively, of Fig. 4. Fig. 7 is a sectional view on the line 7 7 ofFig. 2.

It is my intention to provide a bearing consistingof a bodylO, ofsuitable bearing metal, and a back 11, made of malleable iron'or othersuitable metal, whereby a bearing of the propersize and strength can bemade with considerably less bearing metal than has heretofore been usedand at much less expense. The back extends over the body between the endlugs 12 of the Universal hearing (shown in Fig. 1) and down on the sidesof the body and is seated securelyagainst the shoulders 13. The back isshaped to con form to the usual outline of this hearing and Serial No.109,040. (No model.)

is' provided at the center with a convex portion 14a'ndwith side lugs 15adjacent to said convex portion.

In order to unite and lock the back plate and the body securelytogether, I provide struts or bridges 17, extending from the dependingsides 18 of the back to the top thereof, as clearly shown in thesectional views. Of course I may use any number of these struts orbridges and the size thereof maybe varied, as found desirable; but Ibelieve the desired results will be secured by using three pairs ofstruts or bridges, as indicated in broken lines in Fig. 1, one pairbeing located about the center of the bearing and another .pair at oradjacent to each end thereof. I do not in any way confine myself to theuse of any particular number of struts or bridges or to any particulararrangement thereof. The struts or bridges of each pair extend obliquelyfrom the sides of the back to the top thereof, and the juncture of eachstrut or bridge with the top of the back may be located at a distancefrom the longitudinal center of the back, as shown in Fig. 3, or theupper ends of the struts or bridges may be brought close together, asshown in Fig. 6, these and other details of construction beingsusceptible of many variations to accommodate the invention to differentcircumstances.

In Figs..4= to 6 I have shown the invention embodied in a standardMaster (Jar-Builders car-axle hearing, which is of well-knownconstruction and has the flat top 20 and inclined sides 21 with ashoulder 22 at one end and the projecting lugs 23. The struts or bridges17 are arranged in this hearing insubstantially the same manner asheretofore described with relation to the 5 Universal bearing, exceptthat the struts of each pair are shown in Fig. 6 to-approach closer toeach other at the juncture with the top of the back; but it is apparentthat this is a detail of construction which may be changed withoutdeparting in any way from the spirit of the invention. 7

A hearing embodying my invention may he made of'other metals besidesbrass and malleable iron and may be provided with a lining 27 of Babbittmetal or other lubricating material and a central oil-opening 16, ifdesired; but this is not necessary.

It will be apparent to those skilled in the art that the use of a backmade of malleable iron or other suitable metal will enable theproduction of a bearing at a great deal less cost than if the bearing ismade of solid brass or other bearing metal in the manner now commonlyfollowed. This will be accomplished also without in any way impairingthe strength or shortening the life of the bearing, provided a perfectunion of parts is effected, and this result is produced by my.inventionas herein set forth and described. The struts or bridges form pockets 19between themselves and the top and sides of the back, in which the bodymetal flows in the casting operation and securely locks the body andback together, so that there can be no possibility ofthe back and bodybecoming loose or disconnected before the bearing is worn out.

I do not limit myself to the use of struts or bridges of the exactcharacter herein shown and described nor to their arrangement only atthe sides of the back, extending to the top thereof, but reserve theright to employ ribs or bridges of any kind and in any arrangement whichmay be found desirable for the purpose intended.

While I have shown and described the in vention as embodied in acar-axle bearing, I do not limit myself to this particular use, becauseit will be apparent that it may be embodied in bearings of manydifferent varieties and the same superior results effected.

Having thus fully described my invention,

what I claim, and desire to secure by Letters Patent, is

l. A journal-bearing comprising a body, and a back for the body havingpockets formed in its underside to receive the body metal, said pocketsbeing closed transversely but open longitudinally of the back.

2. A journal-bearing comprising a body, and a back for the body havingpockets in its under side and at the corners formed by its sides and topto receive the body metal, said pockets being closed transversely butopen longitudinally of the back.

3. A journal-bearing comprising a body, and a back for the body made ofa different kind of metal, and angularly-arranged integral struts on theunder side of the back forming pockets between themselves and the backto receive the body metal.

4:. A journal-bearing comprising a body, a

back for the body made out of a different kind of metal, and integralstruts on the under side of the back and on both sides of thelongitudinal center thereof forming pockets between themselves and theback to receive the body metal.

5. A journal-bearing comprising a body, a back for the body made of adifferent kind of metal and having depending sides, and integral strutson the under side of the back extending obliquely from the sides of theback to the top thereof, and forming pockets between themselves and theback.

GEORGE A. WOODMAN.

Witnesses:

R. D. HOPPING, JAY E. VAN VLAcK.

